Cite

[Advertising cards for The youth's companion].

MLA

[Advertising Cards for The Youth's Companion]. Perry Mason & Company, 0AD. https://collections.library.yale.edu/catalog/30849876.

APA, 6th edition

[Advertising cards for The youth's companion]. (0 C.E.). [Advertising cards, Advertisements]. Perry Mason & Company. https://collections.library.yale.edu/catalog/30849876.